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61,005 resultsShowing papers similar to A Review on the Microwave-Assisted Pyrolysis of Waste Plastics
ClearChemical Recycling of Plastics by Microwave‐Assisted High‐Temperature Pyrolysis
Researchers developed a microwave-assisted high-temperature pyrolysis method that continuously breaks down mixed plastic waste and plant oil into useful chemicals like ethylene and propylene. This chemical recycling approach could help divert plastic waste from the environment while producing renewable building blocks for new materials.
Current Developments in the Chemical Upcycling of Waste Plastics Using Alternative Energy Sources
This review covers chemical upcycling approaches for waste plastics using alternative energy sources such as microwave, ultrasound, and photocatalysis, highlighting their potential to convert mixed plastic waste into valuable chemical feedstocks more efficiently than conventional pyrolysis.
Mechanochemical and Mechanobiological Recycling of Postconsumer Polyethylene terephthalate (PET) Plastics under Microwave irradiation: A comparative study.
Researchers developed a rapid mechanical pretreatment using microwave irradiation to improve PET plastic recycling under mild, environmentally friendly conditions. More efficient PET recycling reduces the amount that ends up in landfills or the environment, where it breaks down into microplastics.
Plastic Waste Recycling, Applications, and Future Prospects for a Sustainable Environment
This review examines emerging plastic waste recycling strategies including microwave, plasma, and supercritical water conversion, highlighting applications in construction, fuel production, and nanomaterials for a circular economy.
Microwave-Assisted Extraction for Quantification of Microplastics Using Pyrolysis–Gas Chromatography/Mass Spectrometry
Researchers developed a microwave-assisted extraction method combined with pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) for quantifying microplastics in environmental matrices, improving extraction efficiency and analytical accuracy.
Rapid activation of microplastics by microwave heating in an aqueous phase: A novel approach for enhanced plastic recycling
Microwave heating was used to rapidly activate microplastics by partial oxidation, enhancing their subsequent degradation in catalytic wet peroxide oxidation (CWPO) processes. Graphite particles and hydrogen peroxide during microwave treatment boosted MP reactivity, with aliphatic plastics activating more effectively than aromatic ones.
Rapid activation of microplastics by microwave heating
This study investigated using microwave heating to rapidly activate microplastics, likely altering their surface chemistry to enhance adsorption of pollutants or to accelerate degradation. Understanding how heat treatment transforms microplastics is relevant both for remediation strategies and for assessing what happens to plastics in environments or processes involving elevated temperatures.
Rapid activation of microplastics by microwave heating
This study investigated using microwave heating to rapidly activate microplastics, likely altering their surface chemistry to enhance adsorption of pollutants or to accelerate degradation. Understanding how heat treatment transforms microplastics is relevant both for remediation strategies and for assessing what happens to plastics in environments or processes involving elevated temperatures.
Emerging Technologies for Waste Plastic Treatment
This review surveyed emerging technologies for waste plastic treatment including chemical recycling, pyrolysis, biodegradation, and catalytic conversion, evaluating their potential to address the growing plastic pollution crisis more effectively than conventional methods.
Plastic pyrolysis over HZSM-5 zeolite and fluid catalytic cracking catalyst under ultra-fast heating
Researchers demonstrated that using induction heating — a fast, energy-efficient method — with catalysts can fully break down polyethylene and polypropylene plastics within 10 minutes, converting them into useful gases and liquid chemicals, offering a more economically viable recycling pathway than conventional plastic pyrolysis.
Production of combustible fuels and carbon nanotubes from plastic wastes using an in-situ catalytic microwave pyrolysis process
Researchers developed an in-situ catalytic microwave pyrolysis process using ZSM-5 catalyst to convert plastic waste into hydrogen, liquid fuel, and carbon nanotubes, demonstrating a promising route for both energy recovery and valuable material production from plastic pollution.
Comprehensive Assessment of Thermochemical Processes for Sustainable Waste Management and Resource Recovery
This review evaluates thermochemical technologies such as pyrolysis, gasification, and liquefaction for converting waste materials, including plastics, into useful chemicals and fuels. Researchers compared the processes based on energy efficiency, product quality, and environmental impact. The study aims to guide the selection of the most appropriate waste-to-value technology for different materials as part of a circular economy approach.
Hydrothermal liquefaction of plastics: a survey of the effect of reaction conditions on the reaction efficiency
This review summarizes how hydrothermal liquefaction, a process that uses hot pressurized water, can be used to chemically recycle waste plastics. Researchers examined how different reaction conditions affect the efficiency of breaking down plastics into useful products. The study suggests that this technique holds promise as a practical approach to addressing the global plastic waste crisis.
Global trends of pyrolysis research: a bibliometric analysis
This systematic review maps global research trends in pyrolysis, a process that uses heat to break down waste materials. The findings are relevant to microplastic pollution because pyrolysis is being explored as a method to break down plastic waste, and understanding which approaches work best could help reduce the flow of microplastics into the environment.
Development of a Microwave-Assisted Digestion Procedure for Microplastics Extraction from Different Food Matrices with Subsequent Analysis Using Raman Microspectroscopy
Scientists developed a faster way to find tiny plastic particles (microplastics) in different types of food using microwave technology. The new method can detect these particles in just 2 hours compared to much longer with older techniques, and it works well on various foods. This matters because microplastics are increasingly found in our food supply, and having better detection methods helps scientists monitor what we're eating and understand potential health risks.
Recovery of plastic waste through its thermochemical degradation: a review
This review examines pyrolysis as a promising technology for recovering valuable chemical compounds from plastic waste, which reached approximately 368 million tons of global production in 2020 alone. Researchers discuss how thermal and catalytic degradation can convert different types of thermoplastics into high-energy-value products. The study also highlights the environmental and health impacts of plastic accumulation, including the effects of microplastic consumption on human and animal health.
Perspectives on sustainable plastic treatment: A shift from linear to circular economy
This review examines emerging technologies for converting plastic waste into useful chemicals and fuels, including methods like pyrolysis, photocatalysis, and electrocatalysis. Researchers highlight how these approaches could shift plastic management from a throw-away model to a circular economy where waste becomes a resource. The study identifies remaining knowledge gaps and proposes future research directions for sustainable plastic treatment.
A State-of-the-Art Review on the Technological Advancements for the Sustainable Management of Plastic Waste in Consort with the Generation of Energy and Value-Added Chemicals
This review examined technological advances for converting plastic waste into energy and value-added chemicals, covering pyrolysis, gasification, and catalytic processes as sustainable alternatives to landfilling, given that global plastic waste generation reached approximately 380 million tonnes in 2022.
A Comprehensive Review on the Thermochemical Treatment of Plastic Waste to Produce High Value Products for Different Applications
This review summarizes methods for converting plastic waste into valuable products using high-temperature chemical processes like pyrolysis and plasma technology. These approaches can produce hydrogen fuel, carbon nanotubes, and other useful materials from plastic that would otherwise become pollution. Reducing plastic waste through better recycling technology is important because most microplastic pollution originates from improperly managed plastic products.
Pyrolysis as a value added method for plastic waste management: A review on converting LDPE and HDPE waste into fuel
This review examined pyrolysis as a method to convert low-density and high-density polyethylene plastic waste into fuel, summarizing process parameters, product yields, and fuel quality. Pyrolysis can transform otherwise unrecyclable plastic into diesel-like hydrocarbon fuels. The technology offers a potential solution for managing polyethylene waste while generating energy from materials that would otherwise persist in the environment.
Microwave-assisted pretreatments and analytical pyrolysis for the quantification of microplastics and correlated pollutants
Researchers combined microwave-assisted extraction and digestion with analytical pyrolysis coupled to gas chromatography-mass spectrometry (Py-GC-MS) to characterize and quantify microplastics and associated pollutants including additives, persistent organic pollutants, and degradation products in environmental samples, using lyophilized mussel flour as a reference matrix. They found that microwave-assisted pretreatments significantly reduced sample preparation time while achieving reliable MP quantification alongside co-occurring chemical contaminants.
Light-driven polymer recycling to monomers and small molecules
Researchers reviewed how sunlight can be harnessed to chemically break down plastic waste into reusable molecules, offering a lower-energy alternative to heat-based recycling methods like pyrolysis. While still limited to certain plastic types, light-driven recycling shows promise for converting hard-to-recycle plastics into valuable chemical building blocks.
Are Reliable and Emerging Technologies Available for Plastic Recycling in a Circular Economy?
This review examines the current landscape of plastic recycling technologies -- including mechanical, thermal, chemical, and biological depolymerization methods such as pyrolysis -- evaluating their readiness for circular economy integration. It concludes that while recycling rates remain below 10% globally, emerging technologies offer pathways toward closed-loop plastic supply chains, though full-scale implementation requires further development and performance assessment.
Recent Progress in Low-Cost Catalysts for Pyrolysis of Plastic Waste to Fuels
This review evaluated low-cost catalysts — including zeolites, clays, and bimetallic materials — for the pyrolytic conversion of plastic waste into fuel, comparing their effects on product yield and quality and highlighting promising candidates for scaling up plastic-to-fuel processes.